<template>
  <div class="report">
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
export default {
  name: 'Report',
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {},
  async mounted() {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))

    // 请求数据
    const {data:res} = await this.$http.get('reports/type/1')
    if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
    this.$message.success('获取图表数据成功！！！')
    // console.log(res)
    // 合并数据
    const newOption = {...this.options, ...res.data}
    // console.log(newOption)
    // 设置x轴边界没有差距
    newOption.xAxis[0].boundaryGap = false
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(newOption)
  },
  methods: {}
}
</script>

<style scoped>
</style>